Computer virus experts at Kaspersky Lab, a private company in Moscow, say they believe a government sponsor is behind the Flame malware they detected because of its sophistication.

Computer virus experts at Kaspersky Lab, a private company in Moscow, say they believe a government sponsor is behind the Flame malware they detected because of its sophistication. (Sergei L. Loiko / Los Angeles Times)

Computer virus experts at Kaspersky Lab, a private company in Moscow, say they believe a government sponsor is behind the Flame malware they detected because of its sophistication.